تقرير
Magnetic states of MnP: muon-spin rotation studies
| العنوان: | Magnetic states of MnP: muon-spin rotation studies |
|---|---|
| المؤلفون: | Khasanov, R., Amato, A., Bonfà, P., Guguchia, Z., Luetkens, H., Morenzoni, E., De Renzi, R., Zhigadlo, N. D. |
| المصدر: | J. Phys.: Condens.Matter, 29, 164003 (2017) |
| سنة النشر: | 2017 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, Condensed Matter - Strongly Correlated Electrons |
| الوصف: | Muon-spin rotation data collected at ambient pressure ($p$) and at $p=2.42$ GPa in MnP were analyzed to check their consistency with various low- and high-pressure magnetic structures reported in the literature. Our analysis confirms that in MnP the low-temperature and low-pressure helimagnetic phase is characterised by an increased value of the average magnetic moment compared to the high-temperature ferromagnetic phase. An elliptical double-helical structure with a propagation vector ${\bf Q}=(0,0,0.117)$, an $a-$axis moment elongated by approximately 18% and an additional tilt of the rotation plane towards $c-$direction by $\simeq 4-8^{\rm o}$ leads to a good agreement between the theory and the experiment. The analysis of the high-pressure $\mu$SR data reveals that the new magnetic order appearing for pressures exceeding $1.5$ GPa can not be described by keeping the propagation vector ${\bf Q} \parallel c$. Even the extreme case -- decoupling the double-helical structure into four individual helices -- remains inconsistent with the experiment. It is shown that the high-pressure magnetic phase which is a precursor of superconductivity is an incommensurate helical state with ${\bf Q} \parallel b$. Comment: 9 pages, 9 figures. arXiv admin note: substantial text overlap with arXiv:1603.03367 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1361-648X/aa6391 |
| URL الوصول: | http://arxiv.org/abs/1701.08699 |
| رقم الأكسشن: | edsarx.1701.08699 |
| قاعدة البيانات: | arXiv |
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